There aren't many preflop in or out of position stats built into PT4 because there are different ways of looking at whether you're in or out of position preflop, so these would mostly need to be built as #Custom Stats (Guide)
You may find some in the Download Warehouse
already, but otherwise you'd need to build your own.
The Tutorial: Custom Reports and Statistics
goes into much more detail about how to make stats, including new versions of existing stats like you would probably want to do.
How you define in or out of position, and what type of stats you want to see, will affect exactly how you would build your stats, but the position of the player the stat is for is stored in the database field "cash_hand_player_statistics.position" (or "tourney_..." if you want to make tournament stats), and you can get the position of the player who made different actions (2bet, 3bet, etc) using the Actors and Aggressors strings, as described here